<?php
#usr=m+IdM50Dx/W1JSZXr473kw==&dev=29347 
$usr = $_GET["usr"];
$dev = $_GET["dev"];
echo "usr : ".rawurldecode($usr)."<br>";
echo "dev : ".rawurldecode($dev)."<br>";
//echo rawurlencode("86&amp");
//echo "<br>";
//echo htmlspecialchars(rawurldecode("86%26amp"));
$receiver_name = rawurldecode($_GET["usr"]);
$device_id = rawurldecode($_GET['dev']);

?>